Answer
$x=50$
Work Step by Step
Combine like terms to obtain:
$60x+15x=900+2850\\
75x=3750$
Divide $75$ to both sides to obtain:
$x=\frac{3750}{75}\\
x=50$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 2 - Linear and Quadratic Functions - Section 2.1 Properties of Linear Functions and Linear Models - 2.1 Assess Your Understanding - Page 126: 4
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